| 鸡交叉喙研究进展 |
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| 引用本文： | 石雷,孙研研,李云雷,白皓,陈继兰.鸡交叉喙研究进展[J].中国农业科技导报,2022,24(11):35-42. |
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| 作者姓名： | 石雷 孙研研 李云雷 白皓 陈继兰 |
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| 作者单位： | 1.中国农业科学院北京畜牧兽医研究所, 农业部动物遗传育种与繁殖(家禽)重点实验室, 北京 100193;2.河北农业大学动物科技学院, 河北 保定 071001;3.扬州大学动物科学与技术学院, 江苏 扬州 225009;4.扬州大学农业科技发展研究院, 教育部农业与农产品安全国际合作联合实验室, 江苏 扬州 225009 |
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| 基金项目： | 北京市科技计划课题项目(D171100007817005);财政部与农业农村部国家现代农业产业技术体系建设专项(CARS-40);农业农村部动物遗传育种与繁殖（家禽）重点实验室开放课题项目(Poultrylab2019-1);中国农业科学院科技创新工程项目(ASTIP-IAS-04) |
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| 摘 要： | 交叉喙是多基因控制的复杂性状，目前已在全球至少12个鸡种中报道，包括商业品种和地方品种。交叉喙鸡刚出壳时喙形正常，但在随后1~2个月内逐渐呈现上下喙交错、咬合不全的交叉状态。交叉喙严重影响个体采食和饮水、降低生产性能、损害动物福利。交叉喙以下喙偏离中线为主，原因是单侧下颌骨支发育缓慢，LOC426217、BMP4、FIGNL1基因和脂蛋白脂肪酶、清蛋白等与该性状的发生相关。综述了鸡交叉喙表型特征、遗传方式和分子调控机制等方面的研究进展，以期为深入解析该性状的遗传基础和降低发病率提供借鉴。
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| 关 键 词： | 鸡 交叉喙 遗传规律 形态发育 分子机制 |
| 收稿时间： | 2021-09-10 |
Research Progress on Crossed Beak in Chicken |
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| Lei SHI,Yanyan SUN,Yunlei LI,Hao BAI,Jilan CHEN.Research Progress on Crossed Beak in Chicken[J].Journal of Agricultural Science and Technology,2022,24(11):35-42. |
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| Authors: | Lei SHI Yanyan SUN Yunlei LI Hao BAI Jilan CHEN |
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| Abstract: | Crossed beak is a complex trait regulated by many genes， and the prevalence of this trait was documented in at least 12 chicken strains worldly including commercial strains and native chickens. The crossed beak is a deformity， which is defined as misalignment of the upper and lower beak， and does not become apparent until the chicks in 1 and 2 months old. Crossed beaks have reduced feeding and drinking， poor production performance， and caused great animal welfare problem. The mandibular curvature occurred much more than maxilla. Crossed beaks is characterized by impaired development of unilateral mandibular ramus. Recently， many candidate factors， such as LOC426217， BMP4， FIGNL1 genes and parvalbumin and lipoprotein lipase etc. were identified related to crossed beak. This review summarized research progress of phenotype characterization， mode of transmission， and genetic mechanisms of crossed beaks in chickens， and aimed at supporting better understanding and mechanism exploration of this trait and reducing its occurance. |
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| Keywords: | chicken crossed beak inheritance morphological development regulation mechanism |
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